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author | Anton Tananaev <anton.tananaev@gmail.com> | 2019-03-31 22:35:39 -0700 |
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committer | Anton Tananaev <anton.tananaev@gmail.com> | 2019-03-31 22:35:39 -0700 |
commit | 59416923dcb3a756eaf532cc4259f2f6625c0762 (patch) | |
tree | 9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/org/traccar/protocol/L100FrameDecoder.java | |
parent | 79a129dd6327d932133d6b9a50190d3f4927bff9 (diff) | |
download | trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.gz trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.bz2 trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.zip |
Convert project to gradle
Diffstat (limited to 'src/org/traccar/protocol/L100FrameDecoder.java')
-rw-r--r-- | src/org/traccar/protocol/L100FrameDecoder.java | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/src/org/traccar/protocol/L100FrameDecoder.java b/src/org/traccar/protocol/L100FrameDecoder.java deleted file mode 100644 index 158461895..000000000 --- a/src/org/traccar/protocol/L100FrameDecoder.java +++ /dev/null @@ -1,90 +0,0 @@ -/* - * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org) - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -package org.traccar.protocol; - -import io.netty.buffer.ByteBuf; -import io.netty.channel.Channel; -import io.netty.channel.ChannelHandlerContext; -import org.traccar.BaseFrameDecoder; - -import java.nio.charset.StandardCharsets; - -public class L100FrameDecoder extends BaseFrameDecoder { - - @Override - protected Object decode( - ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception { - - if (buf.readableBytes() < 10) { - return null; - } - - if (buf.getCharSequence(buf.readerIndex(), 4, StandardCharsets.US_ASCII).toString().equals("ATL,")) { - return decodeNew(buf); - } else { - return decodeOld(buf); - } - } - - private Object decodeOld(ByteBuf buf) { - - int header = buf.getByte(buf.readerIndex()); - boolean obd = header == 'L' || header == 'H'; - - int index; - if (obd) { - index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '*'); - } else { - index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x02); - if (index < 0) { - index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x04); - if (index < 0) { - return null; - } - } - } - - index += 2; // checksum - - if (buf.writerIndex() >= index) { - if (!obd) { - buf.skipBytes(2); // header - } - ByteBuf frame = buf.readRetainedSlice(index - buf.readerIndex() - 2); - buf.skipBytes(2); // footer - return frame; - } - - return null; - } - - private Object decodeNew(ByteBuf buf) { - - int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '@'); - if (index < 0) { - return null; - } - - if (buf.writerIndex() >= index + 1) { - ByteBuf frame = buf.readRetainedSlice(index - buf.readerIndex()); - buf.skipBytes(1); // delimiter - return frame; - } - - return null; - } - -} |